Internorm [1st] in Code Level 5
Mid- Street is the first publicly funded social housing development in the UK
to achieve Code Level 5. The development consists of two two-bedroom
flats constructed by Osborne building contractors on behalf of Raven
Housing Trust. The key objective of this development was to reduce energy
consumption and carbon emissions. Therefore air leakage had to be
reduced and as much energy had to be retained as possible.
Initially the building was planned to meet code level 3 standards, but as
Osborne had previous experience in building high level sustainable
housing, Raven Housing Trust saw this as an opportunity to exceed the
standard and meet the highest level possible. In order to meet these
requirements the building materials have been chosen carefully to create
a holistic, quality construction solution.
In order to achieve the highest code level possible, Code Level 5, the
Raven Housing Trust utilised a passivhaus philosophy. The house was
extensively modeled, to reduce its carbon footprint and optimize the
amount of day light.
Sophisticated and innovative technologies have been used, such as a
wood-chip biomass boiler, photovoltaic panels and Internorm’s Triple
glazed Windows. These features built together using innovative structural
insulated panels contribute to a reduction in energy consumption. As a
result of this, Mid Street’s tenants are able to enjoy cheaper fuel bills and
live in a more sustainable way.
Internorms exceptional windows demonstrate an excellent performance in
pioneering UPVC technology. Our Dimension+ range windows were used in
this construction to contribute to an outstanding U- value of 0.80W/m2 K.
The windows also compliment the construction, which was required to
mirror the surrounding area consisting of predominantly red-brick, Victorian
The Mid Street construction is not only Code level 5 on paper, but also
genuinely achieves its targets as a completed, habitable home. The house
demonstrates exceptional possibilities and a genuine breakthrough for the